Pen



R. STARKEY AND G. C. HATHBUN.

PEN. APPLICATION FILED IAN. I9, 1921.

Patente Mar. 7, 1922,

EPS @C .E27-

4 invention consists UNITED STATES PATENT oi-ric ROBERT rIERroNT STARKEYAND GEORGE CLAYTON RATHBUN, or sAN FRANCISCO,

CALIFORNIA.

PEN.

To all i/zom i! may concern.'

Be it known that we Roni-:RT PIERPONT STARKEY and GEORGE (LAYTONRATHBUN, both citizens of the United States, and residents,respectively, of San Francisco, in thel county of San Francisco andState ot' California. .have invented a new andlmproved Pen, of which thefollowing is a full, clear, and exact description.

This invention relates to improvements in pens and particularly tolettering or drawing pens. an object of the invention being to provide apen of this character having an ink reservoir and to provide improvedmeans for keeping the ink from drying in thc reselvoir so that it isunnecessary to lill and clean the pen each time it is used.

A further object is t0 provide a pen which is readily adjustablerelative to its holder so that the user may incline the pen holder atany angle' and the pe-n will still be presented in upright position onthe paper.

A still further object is to provide a pen of this character practicalin construction, neat and attractive in appearance and durable andefficient in use. It is also an object of the invention to provide animproved attachment for the pen which will act as a spacing member whenthe pen is used in connection with a T-square or other device having aruling ed e.

1llVith these and other objects in View the in certain novel features ofconstruction and combinations and arrangements of parts as will be morefully hereinafter described and pointed out in the claims.

In the accompanying drawings- Figure 1 is a View in side elevation 'ofmy improved pen and pen holder, the dotted lines indicating otherpositions which may be assumed by the pen holder.

igure 2 is a top plan View of and a portion of the holder.

igure 3 is a view in vertical section on the line 3 3 of Figure 1. v

Figure 4 is a view in transverse section on the line 4 4 of Figure 3.

Figure 5 is a perspective view illustrating my improved attachmentapplied to the pen and showing its manner of use.

Figure 6 is a viewfin side elevation of the attachment.

Referring in detail to the drawings, 1 repthe pen Specification ofLetters Patent.

which will be simple and.

Patented Mar. 7, 1922'. Serial No. 438,425.

resents the fount of the pen. The fount is of cylindrical shape taperingat its lower end and intel-nali)v threaded adjacent its upper end- Anapertured lug 2 projects laterally from the fount 1 adjacent its lowerend.

The pen holder metal sleeve 3 into one end of which any appropriatehandle member 4 is fitted. The other end of the sleeve is closed and abifurcated member 5 is made integral therewith. The arms of thebifurcated member are perforated and receive the ape'rtured lug 2between them. A screw 6 and thumb nut 6 are used to pivotally connectthe lug 2 and the member 5 so that the pen is pivotally connected to itsholder.

. A threaded cap 7 screws into the upper end ot the fount. The cap isformed with a vertical air passage or vent 8, the inner end of which isenlarged as indicated at 9 to receive the upper end of a spring actuatedplunger 10. A member 11 including an annular series ot outwardly and:upwardly flaring arms is ixedly connected to the intermediate portionof the plunger. At its lower end the plunger 10 is provided with areduced portion 12 constituting the stylus of the pen. The stylus ismovable through an ink duct 13 in the lower end of the fount. A shoulder14 around the plunger just above the stylus is held against the walls ofthe inner end of the ink duct by a coiled spring 15 located around theplunger 10 between the cap 7 and the member 11.

The shoulder 14 thus functions as a springheld valve. lVhen the stylusis pressed against the paper it compresses the spring 15, forces theupper end of the plunger 10 into the enlarged portion 9 of the vent 8,unseats the shoulder 14 from its position against the inner end of theink duct 13 and allows ink to flow through the duct around the stylus.When the pen is lifted olf the paper the spring will automaticallyrestore the parts to their normal position closing the ink duct.

In Figure 5 I have illustrated my improved spacing attachment applied tothe pen. The spacing attachment comprises an annular ring 16 fittingover the fount. A vertically disposed straight edged member 17 is madeintegral with the ring and is adapted to engage the ruling edge of a T-square or similar device 18. A depending preferably comprises a thefount, a vertically bifurcated portion 19 integral with the ring 16straddles the lug 2 and prevents circumferential or downward movement ofthe ring relative to the fount. 4

It will be readily seen that the pen will always be in vertical positionrelative to the paper while the pen any angle to suit the individualpreference of the user.

With the ordinary drawing or letter pens commonly employed, it isnecessary to clean /and fill them every time they are used. My

improved pen is always ready for use since the valve mechanism preventsdrying or caking of the ink.

Various slight changes and modifications might be made in the generalform and arrangement of the parts described without departing from thespirit of the invention, and hence I do not limit myself to the precisedetails set forth but shall consider myself at liberty to'make suchslight changes and `from the fount, apen holder may be tilted at cludinga`fount, a spring held stylus in the fount, an apertured lug extendinglaterally holder including a bifurcated end portion straddling the lugand pivotally connected thereto and a spacing member including a ringfitting over the fount, a lvertically disposed straight edged memberintegral with the ring and means preventing circumferential movement ofthe ring relative to the fount, said means comprising a bifurcatedmember depending from the ring and straddling the ug.

3. In a pen a cylindrical fount tapering and having an ink duet in itslower end, a

cap fitting into the open end of the fount,.

said cap having a vent therein, the inner end of said vent beingenlarged, a spring held plunger, a stylus carried by the lower end ofthe plunger and movable in the ink duct, the upper end of said plungerbeing movable in the enlarged portion of the vent and a shoulderaroundthe plunger limiting the movement of the stylus in the ink ductand normally closing said duct.

4. In a pen, a fount, a stylus in the fount, an arm extending laterallyfrom the fount, a pen holder connected to the arm, a ring around thefount, a vertically disposed straight edged spacing member integral withthe ring, means carried by the ring straddling the arm and preventingcircumferential movement of the ring relative to 4the fount.

ROBERT PIERPONT STARKEY. GEORGE CLAYTON RATHBUN.

